Greenbuild June 2011

GreenbuildGreenbuild Expo 2011Expo 2011
Surface Water Run Off and the CodeSurface Water Run Off and the Code
Brian StannettBrian Stannett

2
AgendaAgenda
 CfSHCfSH May 2009 Version OverviewMay 2009 Version Overview –– Brian StannettBrian Stannett
 Wat1Wat1 WatWat 22
 Sur1 HierarchySur1 Hierarchy
 Sur2Sur2
 CfSHCfSH November 2010 VersionNovember 2010 Version –– Steven KnightSteven Knight
 Wat1 and Wat2 and Sur2 No changeWat1 and Wat2 and Sur2 No change
 Sur1 new criteriaSur1 new criteria
 Use ofUse of SuDSSuDS techniques to reduce runtechniques to reduce run--off volumeoff volume
 Key changesKey changes
 SummarySummary
 Further reference pointsFurther reference points
 Questions and AnswersQuestions and Answers

3
ARDARD
 AvoidAvoid
 No additional P/D runNo additional P/D run--offoff
 Put straight into water tablePut straight into water table
 Infiltrate / soakInfiltrate / soak--awayaway
 Source controlSource control
 PolystormPolystorm modular cellsmodular cells
 ReduceReduce
 ReRe--use some of the runuse some of the run--offoff
 RainstreamRainstream rere--use solutionsuse solutions
 WC flushing laundry outdoorWC flushing laundry outdoor
 DelayDelay
 AttenuateAttenuate
 PolystormPolystorm cellscells
 RXL large diameter pipesRXL large diameter pipes

4
Code Category 2 WaterCode Category 2 Water May 2009 Wat1 and Wat2May 2009 Wat1 and Wat2
LevelsLevels
one and twoone and two
maxmax’’ 120 litres120 litres
per person / dayper person / day
5 credits5 credits
7.5 points7.5 points
Maximum forMaximum for
Code levels 5/6Code levels 5/6
2 credits2 credits
(1.5 weighting)(1.5 weighting)
3 points3 points
110lts/p/d CL2110lts/p/d CL2
LevelsLevels
five and sixfive and six
LevelsLevels
three and fourthree and four
Minimum criteriaMinimum criteria
at each levelat each level
of the Codeof the Code
Internal potableInternal potable
Water useWater use
++
Water useWater use
Total creditsTotal credits
available = 6available = 6
maximum pointsmaximum points
3 credits3 credits
1 extra credit for1 extra credit for
Category TwoCategory Two
WaterWater
sub categorysub category
Wat1 criteriaWat1 criteria
WaterWater
Wat1 awardsWat1 awards
Category Two WaterCategory Two Water
Sub category Wat2Sub category Wat2
External water useExternal water use
1 credit awarded for1 credit awarded for
providing rainwater collectionproviding rainwater collection
system for irrigation usesystem for irrigation use
(connect RWH to outside tap)(connect RWH to outside tap)

5
Code Category 4 Surface Water RunCode Category 4 Surface Water Run--offoff May 2009May 2009
Management of surface water runManagement of surface water run--off from developmentsoff from developments
Peak Rate of RunPeak Rate of Run--offoff
Ensure that peak rate of runEnsure that peak rate of run--off into watercourses is nooff into watercourses is no
greater for the developed site than it was for thegreater for the developed site than it was for the
prepre--development sitedevelopment site
Volume of runVolume of run--offoff
Ensure that the additional predicted volume of rainwaterEnsure that the additional predicted volume of rainwater
discharge caused by the new development for a 1 in 100discharge caused by the new development for a 1 in 100
year event 6 hour duration is entirely reduced (hierarchy)year event 6 hour duration is entirely reduced (hierarchy)
MandatoryMandatory
criteriacriteria
at Code entryat Code entry
levellevel
++
MandatoryMandatory
criteriacriteria
levellevel
available = 2.2available = 2.2
Category FourCategory Four
Surface WaterSurface Water
RunRun--offoff
SUR1SUR1 –– 0 credits0 credits
RunRun--offoff
Code Category FourCode Category Four
Surface Water RunSurface Water Run--off SUR1off SUR1
2 credits for using SUDS to improve2 credits for using SUDS to improve
quality of rainwater discharged or forquality of rainwater discharged or for
protecting quality of receiving watersprotecting quality of receiving waters
Surface Water RunSurface Water Run--offoff
SUR2 Flood RiskSUR2 Flood Risk
2 credits if development in Zone 12 credits if development in Zone 1
1 credit if in Flood Risk Zone 2 or 31 credit if in Flood Risk Zone 2 or 3

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SUR 1 Compliance CriteriaSUR 1 Compliance Criteria –– 0 Credits0 Credits May 2009May 2009
 Peak rate of runPeak rate of run--offoff
 ‘‘Ensure that the peak rate of runEnsure that the peak rate of run--off into watercourses (see definition) is no greater foroff into watercourses (see definition) is no greater for
the developed site than it was for the prethe developed site than it was for the pre--development site. This should comply with thedevelopment site. This should comply with the
interim code of practice for Sustainable Drainage Systems (SUDS)interim code of practice for Sustainable Drainage Systems (SUDS) (CIRIA, 2004) or for(CIRIA, 2004) or for
at least the 1 year and 100 year return period events.at least the 1 year and 100 year return period events.’’
 Calculation CriteriaCalculation Criteria
 For sites ofFor sites of less than 200haless than 200ha, the calculation of Greenfield run, the calculation of Greenfield run--off rates should be inoff rates should be in
accordance with Flood Estimation for small catchments (Marshallaccordance with Flood Estimation for small catchments (Marshall andand BaylissBayliss 1994)1994)
and any subsequent upand any subsequent up--datesdates
 For sites ofFor sites of 200ha and more200ha and more, the calculation of Greenfield run, the calculation of Greenfield run--off rates should be inoff rates should be in
accordance with the Flood Estimation Handbook (Centre for Ecologaccordance with the Flood Estimation Handbook (Centre for Ecology and Hydrology,y and Hydrology,
1999) and any subsequent up1999) and any subsequent up--datesdates
 AnAn allowance for climate changeallowance for climate change should be made in accordance with current bestshould be made in accordance with current best
practice (PPS25 2006)practice (PPS25 2006)

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 Volume of runVolume of run--offoff
 ‘‘Ensure that theEnsure that the additionaladditional predicted volume of rainwater discharge caused by the newpredicted volume of rainwater discharge caused by the new
development, for adevelopment, for a 1 in 100 year event of 6 hour duration1 in 100 year event of 6 hour duration including anincluding an allowanceallowance forfor
climate change (PPS25 2006) is entirely reduced using:climate change (PPS25 2006) is entirely reduced using:
 InfiltrationInfiltration
 And / OrAnd / Or
 Is made available for use in the dwelling as a replacement for pIs made available for use in the dwelling as a replacement for potable water use inotable water use in
nonnon--potable applications such as WC flushing or washing machine operpotable applications such as WC flushing or washing machine operation.ation.
 Any additional rainwater volume that cannot be prevented from beAny additional rainwater volume that cannot be prevented from being dischargeding discharged
(reasons must be provided with supporting evidence), for all eve(reasons must be provided with supporting evidence), for all events up to the 100 yearnts up to the 100 year
return period, the peak discharge rate from the site should be rreturn period, the peak discharge rate from the site should be reduced to (in order ofeduced to (in order of
priority):priority):
 The preThe pre--development sitedevelopment site’’s estimated mean annual flood flow rate (s estimated mean annual flood flow rate (QbarQbar) or) or
 2l/s/ha; or2l/s/ha; or
 A minimum flow rate (litres per second) based on good practice gA minimum flow rate (litres per second) based on good practice guidelines to prevent easy blockage byuidelines to prevent easy blockage by
ensuring the outlet throttle is not too smallensuring the outlet throttle is not too small

8
 ‘‘2 credits are available for using SUDS to improve the quality of2 credits are available for using SUDS to improve the quality of thethe
rainwater discharged or for protecting the quality of the receivrainwater discharged or for protecting the quality of the receivinging
waters by:waters by:
 Ensuring no discharge to the watercourse for rainfall depths upEnsuring no discharge to the watercourse for rainfall depths up toto
5mm. Follow guidance in the interim Code of Practice for Sustain5mm. Follow guidance in the interim Code of Practice for Sustainableable
Drainage Systems (SUDS) , (CIRIA, 2004)Drainage Systems (SUDS) , (CIRIA, 2004)
 OrOr
 Establish agreements for the ownership, long term operation andEstablish agreements for the ownership, long term operation and
maintenance of all sustainable drainage elements used.maintenance of all sustainable drainage elements used.’’
 Default CasesDefault Cases –– Credits can be awarded by default if the siteCredits can be awarded by default if the site
discharges rainwater directly to a tidal estuary or the sea becadischarges rainwater directly to a tidal estuary or the sea becauseuse
compliance with discharge flow rate requirements will not be reqcompliance with discharge flow rate requirements will not be requireduired

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SUR2 Compliance CriteriaSUR2 Compliance Criteria –– 2 Credits2 Credits May 2009May 2009
 EITHEREITHER
 2 credits are available for developments situated in Zone 12 credits are available for developments situated in Zone 1 –– low annuallow annual
probability of flooding (as defined in PPS25probability of flooding (as defined in PPS25 –– ‘‘Planning and Flood RiskPlanning and Flood Risk’’) and) and
where the site specific Flood Risk Assessment (FRA) indicates thwhere the site specific Flood Risk Assessment (FRA) indicates that there isat there is
low risk of flooding from all sourceslow risk of flooding from all sources
 OROR
 1 credit is available for developments situated in Zones 2 or 3a1 credit is available for developments situated in Zones 2 or 3a –– medium andmedium and
high annual probability of flooding where the finished ground flhigh annual probability of flooding where the finished ground floor level of alloor level of all
habitable parts of dwellings and access routes to the ground levhabitable parts of dwellings and access routes to the ground level and theel and the
site, are placed at least 600mm above the design flood level ofsite, are placed at least 600mm above the design flood level of the flood zonethe flood zone
 The Flood Risk Assessment (FRA) accompanying the planning applicThe Flood Risk Assessment (FRA) accompanying the planning applicationation
must demonstrate to the satisfaction of the local planning authomust demonstrate to the satisfaction of the local planning authority andrity and
statutory body that the development is appropriately flood resilstatutory body that the development is appropriately flood resilient andient and
resistant, including safe access and escape routes where requireresistant, including safe access and escape routes where required and thatd and that
any residual risk can be safely managedany residual risk can be safely managed
 Default CasesDefault Cases -- NoneNone

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Code Category 4 Surface Water RunCode Category 4 Surface Water Run--offoff May 2009May 2009
Ensure that peak rate of runEnsure that peak rate of run--off into watercourses is nooff into watercourses is no
greater for the developed site than it was for thegreater for the developed site than it was for the
prepre--development sitedevelopment site
Volume of runVolume of run--offoff
Ensure that the additional predicted volume of rainwaterEnsure that the additional predicted volume of rainwater
discharge caused by the new development for a 1 in 100discharge caused by the new development for a 1 in 100
year event 6 hour duration is entirely reduced (hierarchy)year event 6 hour duration is entirely reduced (hierarchy)
MandatoryMandatory
criteriacriteria
levellevel
++
MandatoryMandatory
criteriacriteria
levellevel
available = 2.2available = 2.2
RunRun--offoff
RunRun--offoff
Surface Water RunSurface Water Run--off SUR1off SUR1
2 credits for using SUDS to improve2 credits for using SUDS to improve
quality of rainwater discharged or forquality of rainwater discharged or for
protecting quality of receiving watersprotecting quality of receiving waters
Surface Water RunSurface Water Run--offoff
SUR2 Flood RiskSUR2 Flood Risk
2 credits if development in Zone 12 credits if development in Zone 1
1 credit if in Flood Risk Zone 2 or 31 credit if in Flood Risk Zone 2 or 3

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Code Category 2 WaterCode Category 2 Water May 2009May 2009
LevelsLevels
one and twoone and two
5 credits5 credits
Maximum forMaximum for
Code levels 5/6Code levels 5/6
2 credits2 credits
(1.5 weighting)(1.5 weighting)
3 points3 points
LevelsLevels
five and sixfive and six
LevelsLevels
three and fourthree and four
Water useWater use
++
Water useWater use
3 credits3 credits
1 extra credit for1 extra credit for
WaterWater
Wat1 criteriaWat1 criteria
WaterWater
Wat1 awardsWat1 awards
Category Two WaterCategory Two Water
Sub category Wat2Sub category Wat2
External water useExternal water use
1 credit awarded for1 credit awarded for
providing rainwater collectionproviding rainwater collection
system for irrigation usesystem for irrigation use
(connect RWH to outside tap)(connect RWH to outside tap)

12
ConclusionsConclusions May 2009 versionMay 2009 version
 By integrating a rainwater reBy integrating a rainwater re--use solution into theuse solution into the
developmentdevelopment’’s overall surface water management plans overall surface water management plan
 Not only are you better able to achieve the mandatoryNot only are you better able to achieve the mandatory
compliance criteria of SUR1 butcompliance criteria of SUR1 but
 You could gain 12.5% of the points required for an overallYou could gain 12.5% of the points required for an overall
rating using the correlation between categories 2 and 4rating using the correlation between categories 2 and 4
 8.2 points of 57 required for a code level 3 = 14.4%8.2 points of 57 required for a code level 3 = 14.4%
 11.2 points of 90 required for a code level 6 = 12.5%11.2 points of 90 required for a code level 6 = 12.5%

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Sustainable SolutionsSustainable Solutions
Ridgistorm XL Large
Diameter Pipe
Polystorm Modular CellsRainstream
Rainwater re-use
Storm X4 Treatment Filter Stormcheck - Flow Control Device

14
Nov 2010 CodeNov 2010 Code SurSur 1 criteria1 criteria
TheThe SuDSSuDS Management Train (prevention, source control, site control,Management Train (prevention, source control, site control,
regional control) should be used as a guide to achieve:regional control) should be used as a guide to achieve:
Hydraulic CriteriaHydraulic Criteria
1) Peak Rate of Run1) Peak Rate of Run--off complianceoff compliance
2) Volume of Run2) Volume of Run--off complianceoff compliance
3) Designing for local drainage system failure3) Designing for local drainage system failure
Water Quality CriteriaWater Quality Criteria
1. One credit awarded for no discharge from developed site for1. One credit awarded for no discharge from developed site for rainfallrainfall
depths up to 5 mm (see Calculation Procedures)depths up to 5 mm (see Calculation Procedures)
2. One credit awarded by ensuring that:2. One credit awarded by ensuring that:
RunRun--off from all hard surfaces receive an appropriate level ofoff from all hard surfaces receive an appropriate level of
treatment in accordance with Thetreatment in accordance with The SuDSSuDS Manual toManual to minimiseminimise the risk ofthe risk of
pollutionpollution
© Code Consultancy Services Ltd Tel: 0161 434 7717 24/6/2011

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Hydraulic Control CriteriaHydraulic Control Criteria –– 20102010
Mandatory for All Code LevelsMandatory for All Code Levels
Ensure that the peak rate of runEnsure that the peak rate of run--off over the lifetime of the development,off over the lifetime of the development,
allowing for climate change, will be no greater for the developeallowing for climate change, will be no greater for the developed site thand site than
it was preit was pre--development.development.
Volume of RunVolume of Run--offoff
Ensure the 100 year 6 hour event volume of runEnsure the 100 year 6 hour event volume of run--off over the lifetime of theoff over the lifetime of the
development, allowing for climate change, will be no greater posdevelopment, allowing for climate change, will be no greater postt--
development; or mitigate for it by providing extended storage andevelopment; or mitigate for it by providing extended storage and lowerd lower
runrun--off rates.off rates.
Local Drainage System Failure (Flood Routing) (Nov 2010)Local Drainage System Failure (Flood Routing) (Nov 2010)
Ensure that flooding of the property will not occur in the eventEnsure that flooding of the property will not occur in the event of localof local
drainage system failure (from extreme rainfall or lack of maintedrainage system failure (from extreme rainfall or lack of maintenance).nance).

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The SUDS Management TrainThe SUDS Management Train

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1. Peak Rate of runoff1. Peak Rate of runoff -- 20102010
 If no increase in impermeable area peak rate of runoff criterionIf no increase in impermeable area peak rate of runoff criterion does notdoes not
apply (no hydraulic calculations needed)apply (no hydraulic calculations needed)
 If impermeable area increased, peak rate of runoff (over lifetimIf impermeable area increased, peak rate of runoff (over lifetime, includinge, including
climate change factor) should be no greater post developmentclimate change factor) should be no greater post development –– for 1 andfor 1 and
100 yr events100 yr events
 Where low flow rates, a flow rate of 5l/s may be used to reduceWhere low flow rates, a flow rate of 5l/s may be used to reduce risk ofrisk of
blockageblockage
NB if there is an increase in volume and 2A cannot be met, theseNB if there is an increase in volume and 2A cannot be met, these runoffrunoff
rates do not applyrates do not apply

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2. Volume of runoff2. Volume of runoff --Nov 2010Nov 2010
 If no increase in impermeable area volume of runoff criterion doIf no increase in impermeable area volume of runoff criterion does notes not
applyapply
 If a greater volume would be discharged post development:If a greater volume would be discharged post development:
A The Additional predicted volume must beA The Additional predicted volume must be preventedprevented from leaving thefrom leaving the
site using infiltration or other SUDSsite using infiltration or other SUDS
OROR
B If A cannot be satisfiedB If A cannot be satisfied –– reduce the post development peak rate ofreduce the post development peak rate of
runoff to therunoff to the limiting dischargelimiting discharge

19
Limiting dischargeLimiting discharge –– Nov 2010Nov 2010
 Limiting discharge is the preLimiting discharge is the pre--development flow rate equivalent todevelopment flow rate equivalent to
(Whichever is the highest flow rate of the following)(Whichever is the highest flow rate of the following)
 the 1 year peak flow rate orthe 1 year peak flow rate or
 QbarQbar –– mean annual flood flow rate ormean annual flood flow rate or
 22 l/s/hal/s/ha
For the 1 year peak flow rate, the 1 year return period event inFor the 1 year peak flow rate, the 1 year return period event in 1. above1. above
appliesapplies
For all other events, up to the 100yr event, the peak rate of ruFor all other events, up to the 100yr event, the peak rate of runoff for thenoff for the
developed site must not exceed the limiting dischargedeveloped site must not exceed the limiting discharge
If limiting discharge works out < 5l/s you can use 5l/sIf limiting discharge works out < 5l/s you can use 5l/s

20
Consider Losses Already Assumed in Calculating Percentage RunConsider Losses Already Assumed in Calculating Percentage Run--off.off.
Approx. 10Approx. 10--20% for Impermeable Surfaces; 5020% for Impermeable Surfaces; 50--90% for Pervious Surfaces90% for Pervious Surfaces
Wet Ponds, Reed Beds & WetlandsWet Ponds, Reed Beds & Wetlands
 Evapotranspiration(1mm/day winter, 3mm/day summer)Evapotranspiration(1mm/day winter, 3mm/day summer)
 Infiltration (generally designed to retain water)Infiltration (generally designed to retain water)
Infiltration Basins &Infiltration Basins & SoakawaysSoakaways
 Subject to suitable groundSubject to suitable ground conditions(infiltrationconditions(infiltration rates, water table &rates, water table &
contamination)contamination)
 Proximity to buildings may restrict use, particularly in chalk.Proximity to buildings may restrict use, particularly in chalk.
Use of SuDS Techniques to Reduce Volume

21
 Permeable & Porous SurfacingPermeable & Porous Surfacing
 Depression storage (water held on surface, 5mm*)Depression storage (water held on surface, 5mm*)
 Infiltration (subject to suitable ground conditions )Infiltration (subject to suitable ground conditions )
 EvapotranspirationEvapotranspiration (1mm/day winter, 3mm/day summer)(1mm/day winter, 3mm/day summer)
*5mm losses for large range of events based on research by H R W*5mm losses for large range of events based on research by H R Wallingfordallingford
(included 60mm rainfall over 6 hour period)(included 60mm rainfall over 6 hour period)
 Rainwater HarvestingRainwater Harvesting
 Storage Control Volume to BS 8515Storage Control Volume to BS 8515
 Filter DrainsFilter Drains

22
 Green RoofsGreen Roofs
 Depression storage (water held on surface, 5% of substrate depthDepression storage (water held on surface, 5% of substrate depth))
 Swales, Basins & Filter StripsSwales, Basins & Filter Strips

23
 Underground Attenuation storageUnderground Attenuation storage
 No losses or reductionNo losses or reduction
 LongLong--term Storageterm Storage
(not included in(not included in CfSHCfSH SuDSSuDS Techniques)Techniques)
 Water held on site in areas allowed to flood, water will infiltrWater held on site in areas allowed to flood, water will infiltrate/evaporate overate/evaporate over
long period (no outlet) for examples;long period (no outlet) for examples; carparkcarpark, playing field, playing field
 Need to consider how flood water will be directed to longNeed to consider how flood water will be directed to long--term storage areasterm storage areas
(routes and depth/rate of flow)(routes and depth/rate of flow)
 Possible longPossible long--term problems with land becoming waterterm problems with land becoming water--logged and unusablelogged and unusable

24
Designing for local drainage system failureDesigning for local drainage system failure
 Flood routes to be identified to demonstrate that flooding of prFlood routes to be identified to demonstrate that flooding of property willoperty will
not occur duringnot occur during exceedanceexceedance events (extreme rainfall) or from local failureevents (extreme rainfall) or from local failure
due to blockage/lack of maintenancedue to blockage/lack of maintenance
 Further guidance inFurther guidance in CiriaCiria C63C63

25
SurSur 1 (Nov 2010)1 (Nov 2010)
Sites with mix of code and nonSites with mix of code and non--code dwellingscode dwellings
 Options for assessing mixed code and nonOptions for assessing mixed code and non--code dwelling sitescode dwelling sites
 Option 1.Option 1. Individual dwellings can only be assessed independently whereIndividual dwellings can only be assessed independently where
runrun--off is being dealt with on a dwelling by dwelling basisoff is being dealt with on a dwelling by dwelling basis
 Option 2.Option 2. Where assessing groups of dwellings within a larger development,Where assessing groups of dwellings within a larger development,
the drainage assessment must incorporate the local subthe drainage assessment must incorporate the local sub--catchmentcatchment servingserving
all of those dwellingsall of those dwellings
 Option 3.Option 3. Where assessing runWhere assessing run--off from both code and nonoff from both code and non--code dwellingscode dwellings
/buildings the assessment must take in to account the drainage f/buildings the assessment must take in to account the drainage from therom the
local sublocal sub--catchments serving all those dwellings/buildingscatchments serving all those dwellings/buildings

26
SurSur 1 (Nov 2010)1 (Nov 2010)
Sites with mix of code and nonSites with mix of code and non--code dwellingscode dwellings
 Options for assessing mixed code and nonOptions for assessing mixed code and non--code dwelling sitescode dwelling sites
 Option 4.Option 4. Whole development to be assessedWhole development to be assessed
 A consistent approach should be taken to demonstrate complianceA consistent approach should be taken to demonstrate compliance for runfor run--offoff
rate and volumerate and volume
 Sites should not be artificially subSites should not be artificially sub--divided to enable higher overall dischargedivided to enable higher overall discharge
rates to be claimedrates to be claimed

27
Key Changes inKey Changes in SurSur 11
from May 2009 to Nov 2010 version of the codefrom May 2009 to Nov 2010 version of the code
 Context: moving closer to NationalContext: moving closer to National SuDSSuDS Standards &Standards & SuDSSuDS approvingapproving
Bodies (Bodies (SABsSABs))––Due 2012 (maybe...)Due 2012 (maybe...)
 Guidance note TGN 001 mostly incorporated in 2010Guidance note TGN 001 mostly incorporated in 2010
 Use ofUse of SuDSSuDS management trainmanagement train
 Appropriately qualified professionalAppropriately qualified professional
 November 2010: climate change (30%) applied only to postNovember 2010: climate change (30%) applied only to post--developmentdevelopment
ratesrates
 November 2010: The area of Adoptable highways can be excluded frNovember 2010: The area of Adoptable highways can be excluded fromom
calculationscalculations
 Derelict sites: reasonable assumptions can be modelled to avoidDerelict sites: reasonable assumptions can be modelled to avoid having to usehaving to use
greenfieldgreenfield ratesrates

28
ARDARD
 AvoidAvoid
 No additional P/D runNo additional P/D run--offoff
 Put straight into water tablePut straight into water table
 Infiltrate / soakInfiltrate / soak--awayaway
 Source controlSource control
 PolystormPolystorm modular cellsmodular cells
 ReduceReduce
 ReRe--use some of the runuse some of the run--offoff
 RainstreamRainstream rere--use solutionsuse solutions
 WC flushing laundry outdoorWC flushing laundry outdoor
 DelayDelay
 AttenuateAttenuate
 PolystormPolystorm cellscells
 RXL large diameter pipesRXL large diameter pipes

29
Design FacilityDesign Facility
 Polypipe has a dedicated design facility for WaterPolypipe has a dedicated design facility for Water
Management SolutionsManagement Solutions
 Including rainwater reIncluding rainwater re--useuse
 Which are bothWhich are both
 BS8515 compliant andBS8515 compliant and
 Code for Sustainable Homes compliantCode for Sustainable Homes compliant

30
Polypipe Reference PointsPolypipe Reference Points
 Group web siteGroup web site
 www.polypipe.comwww.polypipe.com
 Water management solutions web siteWater management solutions web site
 www.polypipewms.co.ukwww.polypipewms.co.uk
 Dedicated rainwater reDedicated rainwater re--use web siteuse web site
 www.rainstream.co.ukwww.rainstream.co.uk

31
Government Reference PointsGovernment Reference Points
 CfSHCfSH and Technical Guidance Notes can be accessedand Technical Guidance Notes can be accessed
and down loaded in word orand down loaded in word or pdfpdf format atformat at
 www.planningportal.gov.ukwww.planningportal.gov.uk
 Or DCLGOr DCLG –– the Department for Communities and Localthe Department for Communities and Local
GovernmentGovernment’’s webs web--sitesite
 www.communities.gov.ukwww.communities.gov.uk

32
 Code ClinicCode Clinic
 22--30pm30pm
 Foyer Room 3Foyer Room 3
 Brian Stannett and Steven KnightBrian Stannett and Steven Knight

33
 Thank you for ListeningThank you for Listening
 Brian.stannett@polypipe.comBrian.stannett@polypipe.com
 Stand E40Stand E40

34
Engineered Sustainable SolutionsEngineered Sustainable Solutions
Ridgistorm XL Large
Diameter Pipe
Polystorm Modular CellsRainstream
Rainwater re-use
Storm X4 Treatment Filter Stormcheck - Flow Control Device

Greenbuild June 2011

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